63 MN钛合金正向双动挤压机的设计与应用  

Development and application of 63 MN titanium alloy direct double-action press

作　　者：李正利[1] 荆云海[1] 高朋昌 董晓娟[1] 郭永安 LI Zheng-li;JING Yun-hai;GAO Peng-chang;DONG Xiao-juan;GUO Yong-an(State key laboratory of Metal Extrusion and Forging Equipment Technology,China Heavy Machinery Research Institute Co.,Ltd.,Xi’an 710018,China;Baoji Titanium Industry Co.,Ltd.,Baoji 721014,China)

机构地区：[1]金属挤压/锻造装备技术国家重点实验室,中国重型机械研究院股份公司,陕西西安710018 [2]宝鸡钛业股份有限公司,陕西宝鸡721014

出　　处：《重型机械》2022年第5期89-93,共5页Heavy Machinery

摘　　要：分析了钛合金热挤压工艺流程。针对钛合金热挤压过程中的特点和难点,开发设计了63 MN钛合金油压双动卧式挤压机组。介绍了63 MN钛合金油压双动卧式挤压机挤压力的计算原则、主要技术参数和挤压机的布局和功能。主要特点:挤压机采用循环水冷却来提高穿孔针的使用寿命;采用泵+蓄势器传动联合传动;通过油泵配比优化,在减少油泵数量的同时实现高速挤压;采用机器人系统代替人工完成了高温环境下挤压前对挤压筒进行吹扫、润滑、检查和对穿孔针进行在线润滑的工作,提高了生产效率等。将63 MN钛合金挤压机组的主要产品规格和国内现有的31.5 MN、45 MN钛合金挤压机进行了对比。列举了在63 MN挤压机组上生产的几种典型材料牌号制品的应用,该机组对钽、铌、锆等金属及其合金管材、棒材、型材在热状态下的正向挤压具有一定的适应性。The hot extrusion process of titanium alloy was analyzed.Aiming at the characteristics and difficulties of the hot extrusion process of titanium alloy,the 63 MN titanium alloy oil pressure double-acting horizontal extrusion unit was developed.This paper mainly introduces the calculation principle,main technical parameters,structural composition and functions of 63 MN titanium alloy hydraulic double-acting horizontal extrusion unit,and summarizes the main characteristics of the extrusion unit.The extruder adopts water circulation cooling to improve the service life of the piercing rod.The combined drive of pump+accumulator is adopted,and the high-speed extrusion is realized through the optimization of oil pump ratio by reducing the number of oil pumps.The robot system is used to replace the manual work to complete the purging,lubrication,inspection and on-line lubrication of the extrusion cylinder before extrusion in the high temperature environment,which improves the production efficiency.The main product specifications of 63 MN titanium alloy extrusion unit are compared with the existing 31.5 MN and 45 MN titanium alloy extrusion press in China.Several typical material brands produced on 63 MN extrusion unit are listed.The unit has certain adaptability to the forward extrusion of Ta,Nb,Zr and other metals and their alloy pipes,bars and profiles in hot state.

关 键 词：钛 钛合金 挤压 热挤压工艺 钛挤压设备 

分 类 号：TG166.5[金属学及工艺—热处理]